.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
  margin-top: 1.6em;
  margin-bottom: 0.8em;
  line-height: 1.55;
  font-weight: 500;
  font-family: var(--serif);
  color: var(--text);
}

.markdown h1 {
  font-size: clamp(28px, 3vw, 36px);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3em;
}

.markdown h2 {
  font-size: 26px;
}

.markdown h3 {
  font-size: 21px;
}

.markdown > :first-child {
  margin-top: 0;
}

.markdown h4 {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
}

.markdown hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

.markdown p {
  line-height: 1.8;
  margin: 0 0 0.65em;
  color: var(--body-text);
}

.markdown li {
  line-height: 1.8;
  margin-bottom: 0.35em;
  color: var(--body-text);
}

.markdown li > p {
  line-height: 1.8;
  margin-bottom: 0.35em;
}

.markdown ul,
.markdown ol {
  padding-left: 1.4em;
}

.markdown pre {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
}

.markdown code {
  font-family: var(--mono);
  font-size: 0.92em;
}

.markdown pre code {
  background: transparent;
  padding: 0;
}

.markdown :not(pre) > code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

.markdown img,
.markdown > svg,
.markdown > canvas {
  max-width: 100%;
  height: auto;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.markdown .katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 2px;
  margin: 1.1em 0;
}

.markdown .katex-display > .katex {
  display: inline-block;
  min-width: max-content;
}

.markdown table {
  border-collapse: collapse;
  width: max-content;
  min-width: min(100%, 600px);
}

.markdown th,
.markdown td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.markdown th {
  background: var(--bg-soft);
  font-weight: 600;
}

.markdown blockquote {
  margin: 14px 0;
  padding: 8px 20px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  background: var(--active);
  border-radius: 0 4px 4px 0;
}

.markdown a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 4px;
}

.markdown a:hover {
  text-decoration: underline;
}

.markdown img {
  display: block;
  width: min(100%, 960px);
  margin: 14px auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.table-scroll,
.diagram-scroll {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  margin: 14px 0;
  padding-bottom: 4px;
}

.diagram-scroll > .mermaid,
.diagram-scroll > svg,
.diagram-scroll > canvas {
  display: block;
  min-width: max-content;
}

.markdown blockquote > :last-child {
  margin-bottom: 0;
}

.markdown a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 720px) {
  .markdown h2 {
    font-size: 23px;
  }
}